100442600045 has 4 divisors (see below), whose sum is σ = 120531120060. Its totient is φ = 80354080032.

The previous prime is 100442600023. The next prime is 100442600053. The reversal of 100442600045 is 540006244001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23716924009 + 76725676036 = 154003^2 + 276994^2 .

It is a cyclic number.

It is not a de Polignac number, because 100442600045 - 2¹⁰ = 100442599021 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 100442599987 and 100442600023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10044260000 + ... + 10044260009.

It is an arithmetic number, because the mean of its divisors is an integer number (30132780015).

Almost surely, 2^100442600045 is an apocalyptic number.

It is an amenable number.

100442600045 is a deficient number, since it is larger than the sum of its proper divisors (20088520015).

100442600045 is an equidigital number, since it uses as much as digits as its factorization.

100442600045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20088520014.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 100442600045 its reverse (540006244001), we get a palindrome (640448844046).

The spelling of 100442600045 in words is "one hundred billion, four hundred forty-two million, six hundred thousand, forty-five".